[Sheepdog] Openstack: is sheepdog support limited to volumes?

[Giuseppe Civitella]

Once I've read Morita Kazutaka's answer to my mail I've found the same 
blueprint. 
I realized that when Diablo will be released something very interesting will 
happen in terms of distributed storage support.

May I ask for a comparison between Sheepdog, Ceph and Glusterfs ?

Thanks a lot
Giuseppe



On Friday 08 July 2011 16:34:07 Dan Mihai Dumitriu wrote:
> That is a limitation of Nova, not Sheepdog.  The boot from volume
> support is the same for all types of block storage.
> 
> The work to make booting from volumes work is ongoing, please see
> https://blueprints.launchpad.net/nova/+spec/boot-from-volume
> 
> Cheers,
> Dan
> 
> 
> On Wed, Jul 6, 2011 at 03:34, MORITA Kazutaka
> 
> <morita.kazutaka at lab.ntt.co.jp> wrote:
> > At Mon, 4 Jul 2011 18:38:16 +0200,
> > 
> > Giuseppe Civitella wrote:
> >> Hi all,
> >> 
> >> IFAIK libvirt and qemu both support the creation of virtual machines
> >> which have boot disk stored on a sheepdog cluster.
> >> I've beek checking openstack's wiki for sheepdog's related information.
> >> I've found a configuration example:
> >> http://docs.openstack.org/cactus/openstack-compute/admin/content/sample-
> >> nova-configuration-files.html and this blueprint page:
> >> http://wiki.openstack.org/SheepdogSupport
> >> 
> >> Both pages are just about volumes management.
> >> It seems it's not possible to boot a vm on a nova-compute node while
> >> storing it's disk on a sheepdog cluster: am I wrong?
> > 
> > Currently, OpenStack virtual machines cannot boot from Sheepdog
> > volumes.  The work is still on going, and will be supported in the
> > next release, Diablo.  What you can do with the current version is
> > attaching/detaching Sheepdog volumes to the OpenStack virtual
> > machines.
> > 
> > Thanks,
> > 
> > Kazutaka
> > --
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> > sheepdog at lists.wpkg.org
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